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4 years ago

Ik this is easy but can someone help me?

Mathematics

1 answer:

lord [1]4 years ago

7 0

Your answer is ,
w= -16

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Solve for y.<br> 7y - 6y - 10 = 13

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Answer:

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Step-by-step explanation:

Solve for (y )

by simplifying both sides of the equation, then isolating the variable.

7y - 6y - 10 = 13

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3 years ago

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The radius of a CD is 6cm which equation could be used to find the circumference of the CD in cm ?

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Express y=3x+2 in general form

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3 years ago

Write an equation that goes through (8,1) and is perpendicular to 2y + 4x =12

Serggg [28]

Answer:

2y -x + 6 = 0

Step-by-step explanation:

Here a equation and a point is given to us and we are interested in finding a equation which is perpendicular to the given equation and passes through the given point .

The given equation is ,

$\sf \longrightarrow 2y + 4x = 12 \\$

$\sf \longrightarrow 4x + 2y = 12$

Firstly convert this into slope intercept form , to find out the slope of the line.

$\sf \longrightarrow 2y = -4x +12\\$

$\sf \longrightarrow y =\dfrac{-4x+12}{2}\\$

$\sf \longrightarrow y =\dfrac{-4x}{2}+\dfrac{12}{2}\\$

$\sf \longrightarrow \red{ y = -2x + 6 }$

Now on comparing it to slope intercept form which is y = mx + c , we have ,

m = -2

And as we know that the product of slopes of two perpendicular lines is -1 . So the slope of the perpendicular line will be negative reciprocal of the slope of the given line. Therefore ,

$\sf \longrightarrow m_{\perp}=\dfrac{-1}{-2}=\red{\dfrac{1}{2}}$